+1995 Jacinta is collecting dimes everyday. She collected 1 dime on the first day, 2 dimes on the second day, and 4 dimes on the third day. She continues this pattern for an indefinite amount of time.
Which rule models this situation?
an=−2+a n-1
an=−2n-1
an=2n-1
an=2⋅an+1
+37146 The third one......test it by putting in values for the n
n=1 she saves 1 dime 2^(1-1) = 2^0 =1 Check!
day2 n=2 she saves 2 dimes 2^(2-1) = 2^1 = 2 check !
day3 n=3 she saves 4 dimes 2^(3-1) = 2^2 = 4 check!
etc
etc.
+37146 The third one......test it by putting in values for the n
n=1 she saves 1 dime 2^(1-1) = 2^0 =1 Check!
day2 n=2 she saves 2 dimes 2^(2-1) = 2^1 = 2 check !
day3 n=3 she saves 4 dimes 2^(3-1) = 2^2 = 4 check!
etc
etc.
